View Compilation Error

0_0_20106959_5006.cpp: In function 'int main(int, char**)':
0_0_20106959_5006.cpp:25:8: error: declaration does not declare anything [-fpermissive]
    for(int /*k=0*/;k<=bao;k++)
        ^
0_0_20106959_5006.cpp:25:20: error: 'k' was not declared in this scope
    for(int /*k=0*/;k<=bao;k++)
                    ^